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Lennox 13HPD-060 Limit Switch
The limit switch has a sensor in the heating area that senses, or governs, if and when the air is warmed to a point for the air to begin normal home circulation. Limit switches were created because if the air is not warm enough the you will lose all the heat as the air flows through the ducts.
Some clues limit switch has to be replaced
- The HVAC system is unable to start or run well for any significant length if time
- Your system begins to shut down unexpectedly from time to time
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